Jade, who has two daughters with former partner Piers Jackson, is reported to have confirmed rumours of the pregnancy in an interview with the Sunday Times.

Socialite Assisi, 21, is expecting her first child with her boyfriend Alex, a chef. The couple are thought to have been dating for more than a year.

Jade Jagger told the Sunday Times that her dad had no worries about becoming a great grandfather.

"I think making Mick a grandfather obviously had a big impact, whereas, now making him a great grandfather is no longer particularly fascinating."

(Image: PA)

Designer Jade, who is friends with Kate Moss and Stella McCartney, married Adrian Fillary, 42, in a lavish wedding in June last year.

The baby will be just the latest addition to the growing Jagger brood. Rolling Stone Sir Mick, who headlined at Hyde Park this summer for the band’s 50th anniversary, is dad to seven aged between 14 and 42 with four women.

Eldest Karis was born in 1970 after Sir Mick had a fling with Marsha Hunt, while Jade was born to ex-wife Bianca.

He has Elizabeth, James, Georgia May, and Gabriel from his relationship with Jerry Hall. A fling with Luciana Gimenez also gave him son, Lucas. As well as Assisi and Amba, Sir Mick has two other grandchildren, after Karis became a mum.